Support for unconditional basic income in Spain: A materialist or post‐materialist issue?

Abstract Unconditional basic income (UBI) is a redistributive policy proposal that is receiving increasing attention in the Spanish political sphere. Welfare attitudes literature has shown that support for UBI is higher among left‐wing citizens and those of lower socioeconomic status. However, previous studies have not addressed the mediating role of ideological values such as egalitarianism or meritocratism in supporting UBI. Furthermore, studies have not considered the interactive relationship between ideological and self‐interest motives when studying attitudes toward UBI. Drawing on modernization theory, we propose that individuals' socioeconomic status conditions the role of ideological motivations in shaping support for UBI. To test this hypothesis, we study data from two different surveys conducted in Spain in 2017 ( N = 1958) and 2021 ( N = 2004). Our findings suggest that ideology is a less relevant motivation for supporting UBI among the Spanish citizens of lower socioeconomic status, but it becomes increasingly salient among higher‐status citizens. Among the latter, egalitarian values lead leftists to support UBI, whereas anti‐egalitarian and meritocratic values lead rightists to anti‐UBI positions. We discuss these findings within the framework of modernization theory, addressing support for UBI by different social groups and the ability of this policy proposal to elicit broad‐based support.